631 Wheel Tractor-Scraper

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Quick loading, high travel speeds and the ability to load and dump on the run yield fast cycle times, allowing Cat Wheel Tractor-Scrapers to consistently deliver high productivity at the lowest cost per ton.

Quick loading, high travel speeds and the ability to load and dump on the run yield fast cycle times, allowing Cat Wheel Tractor-Scrapers to consistently deliver high productivity at the lowest cost per ton.

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Integrated Cat Technologies
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Features + Specs

Equipment Features
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Specs
  • Exterior Sound Level: The exterior sound power level for the standard machine (ISO 6393) is 116 dB(A).
  • ROPS/FOPS: ROPS/FOPS meet “ISO Standards.”
  • Emissions: Cat® C18 engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.
  • Engine Model - Tractor: Cat® C18
  • Rated Engine RPM - Tractor: 1900 r/min
  • Flywheel Power - Tractor: 570 hp
  • Overall Width: 12.11 ft
  • Overall Shipping Height: 12.9 ft
  • Scraper Capacity - Struck: 24 yd³
  • Scraper Capacity - Heaped: 34 yd³
  • Rated Load: 37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
  • Width - Cut: 17.7 ft
  • Maximum Depth of Cut: 12.4 in
  • Maximum Depth of Spread: 21.1 in
  • Top Speed - Loaded: 34.7 mile/h
  • 180° Curb-to-Curb Turning Width: 40.12 ft
  • Tires - Scraper: 37.25R35**E3
  • Tires - Tractor: 37.25R35**E3
  • Fuel Tank Refill Capacity - Scraper: 231 gal (US)
  • Operating Weight - Empty: 106430 lb
  • Overall Length - With Bail Down: 54.59 ft
  • Width - Overall Machine: 155 in
  • Width - Overall Machine - Ladder Down: 159.3 in
  • Width - Tractor: 144.2 in
  • Width - Rear Tire Centers: 96.9 in
  • Width - Inside of Bowl: 134 in
  • Width - Outside Bowl - Shipping Width: 143.1 in
  • Height - Overall Shipping: 153.2 in
  • Height - Top of Cab: 149.8 in
  • Front of Tractor to Front Axle: 142 in
  • Ground Clearance - Tractor: 26.1 in
  • Axle to Vertical Hitch Pin: 20 in
  • Height - Scraper Blade Maximum: 20 in
  • Wheel Base: 346.8 in
  • Length - Overall Machine - Standard: 596.8 in
  • Length - Maximum (Push-Pull): 655.2 in
  • Rear Axle - Rear of Machine: 108 in
  • Width - Outside Rear Tires: 143.2 in
  • Scraper Capacity - Heaped: 34 yd³
  • Top Speed - Loaded: 34.7 mile/h
  • Overall Length: 49.34 ft
  • Operating Weight - Empty: 102750 lb
  • Flywheel Power - Tractor/Scraper: 570 hp
  • Bowl Raise: 3.5 s
  • Bowl Lower: 3.5 s
  • Apron Raise: 4 s
  • Apron Lower: 3.8 s
  • Ejector Extend: 8.5 s
  • Ejector Retract: 8.5 s
  • Bail Raise: 1.5 s
  • Bail Lower: 2.1 s
  • Transmission Gear - First: 3.4 mile/h
  • Transmission Gear - Second: 6.2 mile/h
  • Transmission Gear - Third: 7.7 mile/h
  • Transmission Gear - Fourth: 10.5 mile/h
  • Transmission Gear - Fifth: 14.1 mile/h
  • Transmission Gear - Sixth: 19 mile/h
  • Transmission Gear - Seventh: 25.7 mile/h
  • Transmission Gear - Eighth: 34.7 mile/h
  • Transmission Gear - Reverse: 6.2 mile/h
  • Real Wheels (Each): 2.37 gal (US)
  • Crankcase - Tractor: 13.7 gal (US)
  • Transmission System: 29 gal (US)
  • Cooling System: 18.75 gal (US)
  • Fuel Tank: 231 gal (US)
  • Hydraulic System: 37.5 gal (US)
  • Diesel Exhaust Fluid (DEF): 8 gal (US)
  • Final Drive - Each: 8.71 gal (US)
  • Windshield Washer Reservoir: 1.3 gal (US)
  • Differential: 40.41 gal (US)
  • Steering System: ISO 5010:2007
  • Falling Object Protective Structure (FOPS): ISO 3449:2005 Level II
  • Rollover Protection Structure (ROPS): ISO 3471:2008 for up to 21 282 kg (46,919 lb)
  • Seat Belt: SAE J386:FEB2006
  • Reverse Alarm: ISO 9533:2010
  • Brakes: ISO 3450:2011
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